Completely random and maybe it's been speculated before, but... does anyone think that Amy's choice is a bit more age-deliberate than we think? She looks younger than 38, but maybe they're counting on her to look her age later, because they intend to go further with the mythos than we're anticipating? Maybe have many years pass betweens sequels? A Millar-esque thing, where he wanted his trilogy to start in Krypton and end with Superman being the last being alive on Earth?